diff --git a/apps/calculation/additional_outputs/trigonometry_list_controller.cpp b/apps/calculation/additional_outputs/trigonometry_list_controller.cpp
index b8bdcb076..354cbc739 100644
--- a/apps/calculation/additional_outputs/trigonometry_list_controller.cpp
+++ b/apps/calculation/additional_outputs/trigonometry_list_controller.cpp
@@ -1,16 +1,63 @@
 #include "trigonometry_list_controller.h"
 #include "../app.h"
+#include <poincare_nodes.h>
+#include "../../shared/poincare_helpers.h"
 
 using namespace Poincare;
 
 namespace Calculation {
 
-void TrigonometryListController::setExpression(Poincare::Expression e) {
+static constexpr int s_fullCircle[] = {
+  360,
+  2,
+  400
+};
+
+Poincare::Constant toConstant(Expression e) {
+  return static_cast<Poincare::Constant &>(e);
+}
+
+void TrigonometryListController::setExpression(Expression e) {
   assert(e.type() == ExpressionNode::Type::Cosine || e.type() == ExpressionNode::Type::Sine);
-  IllustratedListController::setExpression(e.childAtIndex(0));
+
+  Poincare::Context * context = App::app()->localContext();
+  Poincare::Preferences * preferences = Poincare::Preferences::sharedPreferences();
+  Preferences::AngleUnit angleUnit = preferences->angleUnit();
+
+  Expression angleExpression = e.childAtIndex(0);
+
+  Shared::PoincareHelpers::Reduce(&angleExpression, context, Poincare::ExpressionNode::ReductionTarget::SystemForAnalysis);
+
+  if ((angleUnit == Preferences::AngleUnit::Radian
+        && angleExpression.type() == ExpressionNode::Type::Multiplication
+        && angleExpression.numberOfChildren() == 2
+        && angleExpression.childAtIndex(1).type() == ExpressionNode::Type::Constant
+        && toConstant(angleExpression.childAtIndex(1)).isPi()
+        && angleExpression.childAtIndex(0).type() == ExpressionNode::Type::Rational)
+      || ((angleUnit == Preferences::AngleUnit::Degree || angleUnit == Preferences::AngleUnit::Gradian)
+        && angleExpression.type() == ExpressionNode::Type::Rational)) {
+
+    Expression extracted = angleUnit == Preferences::AngleUnit::Radian ? angleExpression.childAtIndex(0) : angleExpression;
+    Rational r = static_cast<Rational &>(extracted);
+
+    Integer denominator = Integer::Multiplication(r.integerDenominator(), Integer(s_fullCircle[(int) angleUnit]));
+    IntegerDivision division = Integer::Division(r.signedIntegerNumerator(), denominator);
+
+    Integer remainder = division.remainder;
+
+    Expression newAngle;
+    Integer rDenominator = r.integerDenominator();
+    Rational newCoefficient = Rational::Builder(remainder, rDenominator);
+    if (angleUnit == Preferences::AngleUnit::Radian) {
+      angleExpression = Multiplication::Builder(newCoefficient, angleExpression.childAtIndex(1));
+    } else {
+      angleExpression = newCoefficient;
+    }
+  }
+
+  IllustratedListController::setExpression(angleExpression);
 
   // Fill calculation store
-  Poincare::Context * context = App::app()->localContext();
   m_calculationStore.push("sin(θ)", context, CalculationHeight);
   m_calculationStore.push("cos(θ)", context, CalculationHeight);
   m_calculationStore.push("θ", context, CalculationHeight);
diff --git a/apps/calculation/calculation_store.cpp b/apps/calculation/calculation_store.cpp
index 5293474c9..72bc57d34 100644
--- a/apps/calculation/calculation_store.cpp
+++ b/apps/calculation/calculation_store.cpp
@@ -237,7 +237,7 @@ Shared::ExpiringPointer<Calculation> CalculationStore::emptyStoreAndPushUndef(Co
 
 // Recompute memoized pointers to the calculations after index i
 void CalculationStore::recomputeMemoizedPointersAfterCalculationIndex(int index) {
-  assert(index < numberOfCalculations());
+  assert(index < m_numberOfCalculations);
   // Clear pointer and recompute new ones
   Calculation * c = realCalculationAtIndex(index).pointer();
   Calculation * nextCalc;